diff --git a/app/covid-formity/prod.jsonnet b/app/covid-formity/prod.jsonnet
index 18fb845..44f83ef 100644
--- a/app/covid-formity/prod.jsonnet
+++ b/app/covid-formity/prod.jsonnet
@@ -93,7 +93,7 @@
         metadata+: app.metadata("covid-formity") {
             annotations+: {
                 "kubernetes.io/tls-acme": "true",
-                "certmanager.k8s.io/cluster-issuer": "letsencrypt-prod",
+                "cert-manager.io/cluster-issuer": "letsencrypt-prod",
                 "nginx.ingress.kubernetes.io/proxy-body-size": "0",
                 "nginx.ingress.kubernetes.io/configuration-snippet": "
                     location /qr1 { rewrite ^/qr1(.*)$ https://covid.hackerspace.pl$1 redirect; }
diff --git a/app/mastodon/kube/mastodon.libsonnet b/app/mastodon/kube/mastodon.libsonnet
index 04f673b..87ca055 100644
--- a/app/mastodon/kube/mastodon.libsonnet
+++ b/app/mastodon/kube/mastodon.libsonnet
@@ -283,7 +283,7 @@
         metadata+: {
             annotations+: {
                 "kubernetes.io/tls-acme": "true",
-                "certmanager.k8s.io/cluster-issuer": "letsencrypt-prod",
+                "cert-manager.io/cluster-issuer": "letsencrypt-prod",
                 "nginx.ingress.kubernetes.io/proxy-body-size": "0",
             },
         },
diff --git a/app/matrix/lib/matrix-ng.libsonnet b/app/matrix/lib/matrix-ng.libsonnet
index 037da0f..18120f0 100644
--- a/app/matrix/lib/matrix-ng.libsonnet
+++ b/app/matrix/lib/matrix-ng.libsonnet
@@ -365,7 +365,7 @@
         metadata+: {
             annotations+: {
                 "kubernetes.io/tls-acme": "true",
-                "certmanager.k8s.io/cluster-issuer": "letsencrypt-prod",
+                "cert-manager.io/cluster-issuer": "letsencrypt-prod",
                 "nginx.ingress.kubernetes.io/proxy-body-size": "0",
                 "nginx.ingress.kubernetes.io/use-regex": "true",
             },
diff --git a/app/matrix/lib/matrix.libsonnet b/app/matrix/lib/matrix.libsonnet
index 5d4c740..1990358 100644
--- a/app/matrix/lib/matrix.libsonnet
+++ b/app/matrix/lib/matrix.libsonnet
@@ -397,7 +397,7 @@
         metadata+: app.metadata("matrix") {
             annotations+: {
                 "kubernetes.io/tls-acme": "true",
-                "certmanager.k8s.io/cluster-issuer": "letsencrypt-prod",
+                "cert-manager.io/cluster-issuer": "letsencrypt-prod",
                 "nginx.ingress.kubernetes.io/proxy-body-size": "0",
             },
         },
diff --git a/app/onlyoffice/prod.jsonnet b/app/onlyoffice/prod.jsonnet
index aa80806..ea9958d 100644
--- a/app/onlyoffice/prod.jsonnet
+++ b/app/onlyoffice/prod.jsonnet
@@ -80,7 +80,7 @@
             metadata+: {
                 annotations+: {
                     "kubernetes.io/tls-acme": "true",
-                    "certmanager.k8s.io/cluster-issuer": "letsencrypt-prod",
+                    "cert-manager.io/cluster-issuer": "letsencrypt-prod",
                 },
             },
             spec+: {